Merge branch 'master' of sleepmap.de:software/uenv0.9

* 'master' of sleepmap.de:software/uenv:
  README.rst: Adding working homepage link for XenGi.
  bin/update-motd: Fix non-zero exit code in bashs safe mode.
  user/postpone-screensaver.service: Moving executable to /usr/bin. scripts/{postpone-screensaver,update-motd}: moving to bin subfolder for better distinction from scripts.
  scripts/update-motd,system/update-motd.service: Adding script to be called by update-motd.service instead of using so many sh invocations in the service file.

1 files changed, 43 insertions, 0 deletions

diff --git a/bin/postpone-screensaver b/bin/postpone-screensaver
new file mode 100755
index 0000000..7ece93d
--- /dev/null
+++ b/bin/postpone-screensaver
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+# Script to adjust dpms settings when running certain programs,
+# that don't use fullscreen, but should not be "blanked" in between.
+
+export DISPLAY=:0.0
+
+blankoff=0
+programs=( ${programs} )
+# loop all programs and check for running instances
+for i in "${programs[@]}"
+do
+  pid=$(pidof -x $i)
+  re='^[0-9]+$'
+  if  [[ $pid =~ $re ]]; then
+    echo "$i running ($pid)"
+    blankoff=1
+  fi
+done
+
+# if valuable programs are running, don't use screen blanking
+if [ $blankoff -gt 0 ]; then
+  echo "Some program requires screensaver to be off."
+  # print currently set values for screensaver timeout to tmp file
+  echo "s $(xset q|grep timeout|awk '{print $2}') $(xset q|grep timeout|awk '{print $4}')" > $adjust_dpms
+  echo "dpms $(xset q|grep Standby|awk '{print $2}') $(xset q|grep Standby|awk '{print $4}') $(xset q|grep Standby|awk '{print $6}')" >> $adjust_dpms
+  # disable screensaver and dpms
+  xset s off
+  xset -dpms
+else
+  xsetq=$(xset q|grep timeout|awk '{print $2}')
+  # if the timeout is still 0, set it to its former value, or just switch on screensaver/dpms again
+  if [[ $xsetq -eq 0 ]];then
+    if [[ -f "$adjust_dpms" ]];then
+      xset $(head -n1 $adjust_dpms)
+      xset $(tail -n1 $adjust_dpms)
+      rm -rf $adjust_dpms
+    else
+      xset +dpms
+      xset s on
+    fi
+  fi
+fi
+